Nebulizer of liquids



A ril 20 1926. 1,581,752

/ F. MARTINDELL ,NEBULIZER OF LIQUIDS Filed May 3. 1921 Frank Marfindel/ INVENTOR.

BY a n/m ATTORNEY Patented Apr. 20, 1926.

* UNITED STATES PATENT OFFICE;

F ANK manrinnntnon BALDWiN, new YORK, ASSIGNOR TQ THE ANTHQNY ooivr- I may, or LONG ISLAND erry, nnw'YoR A conroniirioiv on new YORK.

.NEBULIZER'OF LIQUins.

Application filed May 3,

To all whom it may concern. t

Be it known that I, FRANK MARTI DELL, a citizen of the United States, and a resident of Baldwin, Long Island, in the. county of Nassau and State 'ofNew York, have 'invented certain new and useful Improve ments in. Nebulizers of Liquids, of which the following is a specification. i

This invention relates to nebulizers of liquids, that is apparatus for causingliquids to assume theform of an extremely fine mist; and the invention particularly relates to nebulizers of the free centrifugal type hereinafter disclosed," wherein the centrifugal action is obtained, not by moving parts 7 Y or by stationary battles in the discharge passage, but by the tangential direction of inlet orifices into a so-called centrifugal chamber within the nebulizer. Nebulizers of this kind are used in connection with Various devices, such as fuel oil burners, paint spraying apparatus, etc, and it is the particular object of this invention to provide the nebulizer with an outlet in a novel position which causes the spray issuing therefrom to assume a substantially fan like or flat shape. This is of special advan tage when using the device embodied with this nebulizer as a paint spraying medium, so as to give the effect of a brush; or, if used in connection with a fuel burner, when the same is mounted near the furnace arch, a flat or fan-like sprayis of utmost advantage, to avoid the melting of the arch.

The invention is illustrated by means of the accompanying drawings in which Fig. 1 is a vertical longitudinal sectional view of the nebulizer;

Fig. 2 is a plan view of the nebulizer, in which are indicated in dotted lines the inlet and outlet orifices;

Fig. 3 is an end view of the nebulizer; Figs. 4. 5 and 6 are similar views showing two inlet orifices.

Like characters of reference denote similar parts throughout the several views and the following description.

10 is a neubulizer, having a shank 11 threaded 'exteriorly for suitably connecting with an apparatus. 12 is atcylindrical head, having a half cylindrical protuberance 13 across its outer face 14. 15 is a hollow core within the nebulizer, cylindrical in shape, substantially at right angles to an axis aa of shank 11. One end ofthe core 15 is referred to 1921." Serial no. 466,558.

the other end by a threaded The core 15 will hereinafter be as centrifugal chamber. 17 is an. inlet opening drilled through shankll, S0 positioned as to impinge; the circumference-of the centrifugal chamber 15, somewhat above the axis-aa.I 18 is a slot, preferably in line with axis arr-c which serves as an outlet from centrifugal chamber .15..

l 7 lin Figs. 4, 5 and 6 is an additional-in closed solidly, plug 16 let orifice, located somewhat below the axis aa, and preferably on a sideof the centrif-. ugal chamber opposite to as shown in the drawings. .7 The operation of the device is by free centrifugal action, as follows:

The liquid enters under pressure through the tangential inlet 17 (see Figs. 1-3) or, inlets 17 and 17 (see Figs. 46) into the centrifugal chamber 15 and revolves around in the same, to be discharged therefrom through outlet 18. Each particle of the liquid on reaching the outlet 18 is dis-- charged in a straight line tangent to the centrifugal chamber at the point in the outlet slot where it leaves the chamber, resulting in a fan like spray.

When two inlets are used, as shown in that? of inlet 17, v

F igs. 4, 5 and 6, one above and one below.

the outlet slot, and on opposite sides of the centrifugal chamber, two fans of spray are produced which blend to result in a .single It is obvious that the angle of the fans in both the single and double inlet types may be varied by altering the depth, width and shape of the outlet. The capacity mav be altered by changing the size of the inlets The capacity and character of the spray may be further altered by varying the'dimensions of the centrifugal chamber. Also, while in the drawings, the outlet is shown in the plane of the axis of the nebulizer, the samemay be located at any desired position in the walls of the centrifugal chamber.

It is understood that various changes in the form, proportions and minor details of construction may be resorted to without departing from the principle or sacrificing any of. the advantages of the invention as defined in the appended claims.

What I claim as new, is:

1. A liquid nebulizer comprising a swirl chamber of cylindrical smooth bore closed at its ends, a tangential inlet through the i curved wall of said chamber adjacent one end," and a discharge through the curved end and substantially opposite the saidin 7 3. A liquid nebulizer comprising a swirl.

chamber of cylindrical smooth bore closed at its ends, a tangential inlet through the curved wall of said chamber adjacent one end, and an oblong discharge through the curved 'wall at a point farther removed from said end. Y v v 4. A nebulizer 1 of 1 liquids comprising a structure having in combination a centrifugal chamber having two inlet openmgstangential to the side wall thereof, an outlet g, opening through the side wall ofthe said centrifugal chamber, the said outletopening being located in a plane between those of the two inlet orifices.

5. A nebulizer, of liquids comprising a structure havingin combination a centrifugalchamber withftwo inlet openings tangential to the side wall thereof, an outlet opening through the side wall of the said centrifugal"chamber, the said outlet opening being located in aplane between and equidistant from the planes of the two inlet orifices. v I

6. A nebulizer of liquids comprising a structure having in combination a centrifugal chamber with two inlet orifices tangential to the side wall thereof and in staggered relation to each other, and an oblong outlet through the side wall of the said centrifugal chamber, the said outlet being located in a plane between and equidistant from the planes of the twoinlet orifices;

In testimony whereof I have hereunto set my hand.

' FRANK MARTINDELL. 

